Oilpan: trace part objects as per the GC plugin's wishes.

Source/core/inspector/InspectorController.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 126 matching lines @@
     visitor->trace(m_state);
     visitor->trace(m_domAgent);
     visitor->trace(m_pageAgent);
     visitor->trace(m_timelineAgent);
     visitor->trace(m_cssAgent);
     visitor->trace(m_resourceAgent);
     visitor->trace(m_layerTreeAgent);
     visitor->trace(m_tracingAgent);
     visitor->trace(m_inspectorFrontendClient);
     visitor->trace(m_page);
-    m_agents.trace(visitor);
+    visitor->trace(m_agents);
 }
 
 PassOwnPtrWillBeRawPtr<InspectorController> InspectorController::create(Page* page, InspectorClient* client)
 {
     return adoptPtrWillBeNoop(new InspectorController(page, client));
 }
 
 void InspectorController::setTextAutosizingEnabled(bool enabled)
 {
     m_pageAgent->setTextAutosizingEnabled(enabled);
@@ skipping 344 matching lines @@
         m_layerTreeAgent->willAddPageOverlay(layer);
 }
 
 void InspectorController::didRemovePageOverlay(const GraphicsLayer* layer)
 {
     if (m_layerTreeAgent)
         m_layerTreeAgent->didRemovePageOverlay(layer);
 }
 
 } // namespace blink